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Abstract #4429

Design Optimization of an Hybrid Multi-Coil Array for In Vivo Human Brain B0 Shimming

Sebastian Theilenberg1, Carlotta Ianniello1, Kay C Igwe1, Adam M Brickman2,3,4, and Christoph Juchem1,5
1Biomedical Engineering, Columbia University in the City of New York, New York, NY, United States, 2Taub Institute for Research on Alzheimer’s Disease and the Aging Brain, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, United States, 3Gertrude H. Sergievsky Center, Vagelos College of Physicians and Surgeons, Columbia University, New York, NY, United States, 4Department of Neurology, Columbia University Medical Center, New York, NY, United States, 5Radiology, Columbia University Medical Center, New York, NY, United States

Synopsis

Keywords: Shims, BrainThe multi-coil (MC) technique utilizing a set of individually driven non-specific coils outperforms traditional spherical harmonics B0 shimming in rodent and human brains. MC designs consisting of dedicated MC elements have shown the best shim performance, while designs utilizing a DC current on the RD coil of RF coil arrays have slightly lower performance but need significantly less physical space. Here, we optimized the number, size and placement of dedicated MC elements to be used in combination with RF-DC coils in a hybrid MC shim system for B0 shimming of the human brain in a clinical 3 T MR scanner.

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